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Effect of the Femtosecond Laser on an Intracorneal Inlay for Surgical Compensation of Presbyopia during Cataract Surgery: Scanning Electron Microscope Imaging

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Ibarz, Marta and Rodríguez Prats, José Luis and Hernández Verdejo, José Luis and Tañá Rivero, Pedro (2017) Effect of the Femtosecond Laser on an Intracorneal Inlay for Surgical Compensation of Presbyopia during Cataract Surgery: Scanning Electron Microscope Imaging. Current Eye Research, 42 (2). pp. 168-173. ISSN 0271-3683

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Official URL: http://dx.doi.org/10.3109/02713683.2016.1158273




Abstract

Purpose: To investigate the effect of the femtosecond laser-assisted cataract surgery (FLACS) on porcine eyes implanted with a Kamra corneal inlay and to describe how the inlay may change the effect of the femtosecond laser on the lens.Methods: FLACS was performed on six porcine eyes and a Kamra corneal inlay had been implanted, exploring the lens under the surgical microscope. Another Kamra corneal inlay was attached to the upper part of the transparent hemisphere used for calibration of the femtosecond laser. Capsulorhexis, arcuate incisions, and phacofragmentation were carried out. The Kamra corneal inlay was compared with a nontreated one using a scanning electron microscope (SEM), and the hemisphere was analyzed with a surgical microscope.Results: Capsulorhexis and phacofragmentation were completed in all the porcine eyes, although accuracy to determine the exact effect on the lens was not possible to achieve. The effect of the femtosecond laser on the PMMA hemisphere through the Kamra corneal inlay showed the capsulorhexis was placed outside the outer margin of the inlay and a sharply sculpted fragmentation pattern with a three-dimensional (donut-shaped) annulus untreated beneath it. SEM images of the nontreated and the treated inlays were comparable. No ultrastructural changes were found in the treated Kamra corneal inlay.Conclusions: FLACS can be performed with a Kamra corneal inlay for surgical compensation of presbyopia without the risk of damaging the inlay. The Kamra corneal inlay acts as a screen that avoids the laser to reach the areas beneath its shadow, but not the exposed areas of the lens.


Item Type:Article
Additional Information:

Received 18 May 2015, Accepted 21 Feb 2016, Published online: 03 Jun 2016

Uncontrolled Keywords:Femtosecond laser-assisted cataract surgery (FLACS), intracorneal inlay, Kamra, presbyopia, scanning electron microscope
Subjects:Medical sciences > Medicine > Surgery
Medical sciences > Medicine > Ophtalmology
Medical sciences > Optics > Imaging systems
Medical sciences > Optics > Lasers
ID Code:44547
Deposited On:14 Sep 2017 12:38
Last Modified:14 Sep 2017 12:38

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